Water footprint assessment considering climate change effects on future agricultural production in Mediterranean region

Papadopoulou, Maria P.; Charchousi, Despoina; Tsoukala, Vasiliki K.; Giannakopoulos, Christos; Petrakis, M.

doi:10.1080/19443994.2015.1049408

Cited by 18 publications

(10 citation statements)

References 9 publications

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“…The WF assessment methodology applied in this study is similar to earlier world-wide studies on water footprint assessment 61 , 62 . However, one of the important innovations in this study is the development of integrated crop evapotranspiration (PMET) and root zone water balance (RZWB) model for the assessment of blue and green crop water footprints.…”

Section: Discussionmentioning

confidence: 99%

“…Konar et al 48 used the H08 global hydrologic model and stated that trade liberalization leads to greater virtual water trade, making it a potentially important adaptation measure to continuously changing climate. The climate change impact analysis was helpful in comparative analysis of sensitivity of WFs to regional climate changes 42 . Therefore, research on the effects of climate change on the blue and green WFs of crop production is of great significance for guiding agricultural management to cope with climate change.…”

Section: Introductionmentioning

confidence: 99%

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A high-resolution assessment of climate change impact on water footprints of cereal production in India

Mali

Shirsath

2021

Sci Rep

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Water footprint (WF), a comprehensive indicator of water resources appropriation, has evolved as an efficient tool to improve the management and sustainability of water resources. This study quantifies the blue and green WF of major cereals crops in India using high resolution soil and climatic datasets. A comprehensive modelling framework, consisting of Evapotranspiration based Irrigation Requirement (ETIR) tool, was developed for WF assessment. For assessing climate change impact on WF, multi-model ensemble climate change scenarios were generated using the hybrid-delta ensemble method for RCP4.5 and RCP6.0 and future period of 2030s and 2050s. The total WF of the cereal crops are projected to change in the range of − 3.2 to 6.3% under different RCPs in future periods. Although, the national level green and blue WF is projected to change marginally, distinct trends were observed for Kharif (rainy season—June to September) and rabi (winter season—October to February) crops. The blue WF of paddy is likely to decrease by 9.6%, while for wheat it may increase by 4.4% under RCP4.5 during 2050s. The green WF of rabi crops viz. wheat and maize is likely to increase in the range of 20.0 to 24.1% and 9.9 to 16.2%, respectively. This study provides insights into the influences of climate change on future water footprints of crop production and puts forth regional strategies for future water resource management. In view of future variability in the WFs, a water footprint-based optimization for relocation of crop cultivation areas with the aim of minimising the blue water use would be possible management alternative.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A high-resolution assessment of climate change impact on water footprints of cereal production in India

Mali

Shirsath

2021

Sci Rep

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“…All the data are publicly available online. For this study, WUE is defined as GDP divided by the total gross water use, according to previous research on water use (Papadopoulou et al, 2016;Hsieh et al, 2019). In this study, WUE was used as a dependent variable to understand the various influencing factors that have impacts on the WUE of each sub-region (Table 1).…”

Section: Data Collectionmentioning

confidence: 99%

Regional difference of water use in a significantly unbalanced developing region

Lin

Chen

2020

Water Policy

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With a service for the most developed economy and dense population in China, the water use of Guangdong province shows distinct regional difference and is subject to multiple driving forces. The regional differences of total water use (TWU) and water use efficiency (WUE) for Guangdong province and its four sub-regions (i.e. Pearl River Dealt region (PRD), Eastern Wing (YD), Western Wing (YX), and Northern Mountain Region (YB)) were quantified by Theil index, and the influence of various variables on WUE was evaluated through multiple linear regression (MLR) models. Overall, Theil index of TWU showed a decreasing trend whereas Theil index of WUE increased in recent decades, suggesting that Guangdong province has experienced an enlarging regional difference of WUE along with a gradually weakened regional difference of TWU. The PRD has the most significant regional differences of WUE and TWU and accounts for a predominated proportion in the total regional difference. Theil indexes of GDP of industry, per capita GDP and per capita value-added by agriculture had positive regression coefficients and were found to have the most significant impact on the regional difference of WUE. This study has the potential to promote a balanced and coordinated regional development in terms of even regional WUE and TWU.

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“…Effects of temperature variability in different regions were not explicitly evaluated. In addition, the previous studies have indicated that climate change might implicitly affect the VWC via the impacts on agricultural water demand (Papadopoulou et al 2016). Future study is recommended to fulfill these limitations towards a better understanding of the overall and regional VWC in the livestock farms.…”

Section: Policy Implicationsmentioning

confidence: 99%

Virtual water content for meat and egg production through livestock farming in Saudi Arabia

2017

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The concept of virtual water content (VWC) may facilitate an understanding of total water demand for commodity production. The water consumption for livestock production forms a significant fraction of freshwater demand in arid regions, i.e., Saudi Arabia. In this paper, VWC was estimated for different livestocks in the 13 regions of Saudi Arabia. The VWC for camel production was also estimated, which has not been investigated in the previous studies. The overall VWC for livestock in Saudi Arabia was about 10.5 and 8.9 billion m 3 in 2006 and 2010, respectively. This study shows the decreasing trend of overall VWC in producing livestock in Saudi Arabia. The VWC were highest in Riyadh followed by Eastern region, Qaseem, Hail, and Makkah with ranges of 3587-4112, 1684-2044, 1007-1331, 644-810, and 504-715 million m 3 /year, respectively. The results demonstrate that a shift in diet from the high VWC meat to low VWC meat may reduce the overall VWC for livestock production. The findings of this analysis provide an assessment of the quantity and trend of water demand for livestock production in Saudi Arabia, which is useful to assess the development of an information-based agricultural water management strategy.

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Water footprint assessment considering climate change effects on future agricultural production in Mediterranean region

Cited by 18 publications

References 9 publications

A high-resolution assessment of climate change impact on water footprints of cereal production in India

A high-resolution assessment of climate change impact on water footprints of cereal production in India

Regional difference of water use in a significantly unbalanced developing region

Virtual water content for meat and egg production through livestock farming in Saudi Arabia

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